trel·lis (trls)
n.

A structure of open latticework, especially one used as a support for vines and other creeping plants. Overgrow note - It works on other dope too, not just creeper weed.

An arbor or arch made of latticework.
v. tr. trel·lised, trel·lis·ing, trel·lis·es.
To provide with a trellis, especially to train (a vine) on a trellis.
To make (something) in the form of a trellis.
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The purpose of trellising is to balance canopy growth and crop production.
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This image shows how Overgrow contributor Eugene used 5 inch square tomato trellis for bud support in a SOG grow.